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degree of heat, not only when hi flower, i)iit 

 from the time the clusters arc dislhiguishaljle ; 

 while tho^e of the white sweet water, and white 

 and roval niuseadines, require a nnieh less de- 

 gree; the former being apt to curl up and become 

 sterilfor want of heat, and the latter to produce a 

 greater quantity of small berries in consequence 

 of too much. Therefore, where there is any 

 difTerence ofcIiiDate (w liich is sometimes occa- 

 sioned by the placing of the (ire-places) in the 

 liouse, this hint should be taken advantage of. 

 Kut it mav then be let down to JO or 72 degrees ; 

 at which endeavour to keep it till the crop is 

 all gathered ; after which, no further attention 

 to the climate is necessary." It is added, "that in 

 the following season, the forcing may, when 

 requisite, be begun amonthorsix weeks sooner; 

 as about the middle of January orfirsiof Febru- 

 ary ; in which early season great attention must 

 be paid to the regulation of the iire-heal." 



He observes, that " a month may be gained 

 every season (where there are two or three 

 grape-houses; and it is required to have grapes 

 at a very early season), until you begin to force 

 the first so early as the first of October; but 

 where there is but one or two houses, the first 

 of March in the one case, and of January in the 

 other, is, he thinks, quite soon enough." 



It is advised that " as the season advances and 

 the weather becomes warm, there should be a 

 proportionable share of free air admitted to the 

 vines every day, which is absolutely necessary 

 to promote the growth of the fruit ; but the 

 glasses should be shut close every night, unless 

 iw very hot weather, otherwise the cold dews in 

 the night will retard it. The bunches in some 

 of the sorts should be carefully looked over, and 

 the small grapes cut out with very narrow- 

 pointed scissars, inorder to thin them." 



Mr.Nicol R'connnends "adueportion ofair to 

 be admitted, every day after planting, from sun- 

 rise to sun-set, until ihe budsbcgui to break ; after 

 whiiL'h, a more piuictual regulation should be 

 observed, being guided much by the tempera- 

 ture of the V, eather, and the quantity of sun- 

 shine, hut admitting less or more every day, 

 unless the severity of frosty winds renders it im- 

 prudent to do so. And as the summer advances, 

 to be very liberal in this article in serene weather ; 

 as it greatly tends to the strengthening of the 

 young shoots." It is, he says, " a practice 

 with many to uncover grape-houses in winter; 

 this he never did, not so n;ucli disapproving of 

 the practice, as owing to the expense attending 

 it, not only in removing and patting on, but in 

 breaking the glasses, and wasting the flues by 

 the extremes of frost and blanching rains. His 

 method is to admit an equal and free circu- 



lation ofair, by opening the sashes alternately 

 at top, bottom, and middle, to the extent of 

 at least a third pai f of the whole covering, and 

 lettuig them remain so dav and night ; never 

 shutting up for any cause but thai of too much 

 wet. In the second season, much the same re- 

 gulation should be observed as above ; and, if 

 fire is applied for the forwarding of the wood, 

 due attention should be paid at that time, as the 

 sudden breaking out of the sun in dull weather, 

 when there is a good deal of lire heat in the 

 house, is attended with much danger." Suppo- 

 sing the plants to have made good wood for the 

 production of acrop, and that they are to be forced 

 from the first of March, says he, "let the house 

 be shut up at night from the middle of February, 

 and have the same quantity ofair in the day it 

 enjoyed all winter. From the time the fire is 

 liehted, give a moderate quantity everv day if 

 possible, till the buds have all broke, to the ex- 

 tent that in sun-shine the thermometer may not 

 rise more than 10' above the tire-heat medium : 

 but after the buds have broke, and the tempe- 

 rature of the house is increased, be careful iu 

 the admission of frosty, or foul damp air. The 

 latter may be entirely excluded, except perhaps 

 for an hour or two in the middle of the day; and 

 the bad effects of the former, by opening the 

 top sashes oiili/ a little way, to pass ofT the rae- 

 fied air occasioned by the sun heat, which is 

 frequently very intense in clear frosty weather 

 in the months of March and April. In clear 

 sun-shining weather, his mode of practice is to 

 give and take away air bv degrees ; that is, by 

 giving half air about eight in the morning, full 

 air about ten or eleven, reducing to half air 

 about two or three, and shutting up about 

 four or five in the afternoon, according to the 

 season. It is necessary from the time the fruit 

 begins to colour, to give large portions of air 

 till the crop is all gathered, the flavour being 

 much augmented by it ; and afterwards to ex- 

 pose \he house night and day for the winter, as 

 directed above J shutting up, however, if much 

 wet, or hard frost, should happen during the 

 first ten or twelve days after the plants have been 

 pruned for the winter season." 



In the latter mode of forcing, or that in hot- 

 houses or pine-stoves, after they have been proper- 

 ly prepared and rendered dry ill the bottom parts, 

 the area should be filled up with acompost-mould 

 composed of onef(nnth strong loam ; one fourth 

 turf from a pasture where the soil is a sandy 

 loam ; one fourth sweepings or scrapings of 

 pavements or hard roads; owi eighth rotten cow 

 and stable-yard dung mixed; and one eightli of 

 vegetable mould from decayed oak leaves ; the 

 grass rau3t be well rotted, and. the whole worked 



